Bio-fuels were hailed as green solution to the energy and climate change problems. Yet, there is a debate concerning whether Bio-fuels are the right answer to these problems. Proponents posit that bio-fuels development brings rural development, employment opportunities, energy security, reduction of GHG emission, environmental conservation, and foreign exchange earnings. On the other hand, opponents claim that bio-fuels increase competition over cropland, increase price of staple foods, disturb bio-diversity, compete for water and land resources, and endanger wildlife. Opponents even go...